package com.nowcoder.community.util;

import com.alibaba.fastjson.JSONObject;
import org.apache.commons.lang3.StringUtils;
import org.springframework.util.DigestUtils;

import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;

public class CommunityUtil {

    //  生成随机字符串
    public static String generateUUID () {
        return UUID.randomUUID().toString().replaceAll("-","");

    }

    //md5加密
    //hello ->abc123def456
    //hello+3e4a8->********
    public static String md5(String key) {
        if(StringUtils.isBlank(key)){
            return null;
        }
        return DigestUtils.md5DigestAsHex(key.getBytes());
    }

    public static String getJSONString(int code, String msg, Map<String,Object> map) {
        JSONObject json=new JSONObject();
        json.put("code",code);
        json.put("msg",msg);
        if (map !=null) {
            for (String key: map.keySet() ) {
                json.put(key,map.get(key));
            }
        }
        return json.toJSONString();
    }

    public static String getJSONString(int code, String msg) {
        return getJSONString(code,msg,null);
    }

    public static String getJSONString(int code) {
        return getJSONString(code,null,null);
    }

    public static void main(String[] args){
        Map<String,Object> map=new HashMap<>();
        map.put("name","zhangsan");
        map.put("age",25);
        System.out.println(getJSONString(0,"ok",map));
    }

}
